Granted Patent
Utility
US 5,771,846 · App. 08/620,331
Method for feed water control in waste heat steam generators
Inventor:
Christoph Ruchti
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Mar 22, 1996
Inventor
Christoph Ruchti
Assignee (at issue)
Asea Brown Boveri, S.A.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.